<!DOCTYPE html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <title>01</title>

    <style>
        .header{
            background:darkgray;
            height: 80px;
            line-height: 80px;
            color: green;
            font-size: 30px;
            font-weight:bolder;
        }

        .navigation{
            background: #BBCCFB;
            float:left;
            width: 25%;
            margin-left: -100%;
        }
        .wrapper{
            /* width:100%; */
            float: left;
        }
        .content{
            margin:0 25%;
        }
        .extra{
            float: left;
            width: 25%;
            background:#FB854B;
            margin-left: -25%;
        }
        .footer{
            background:black;
            color: white;
            clear: left;
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="header">Header</div>
        <div class="wrapper">
            <div class="content">
                <p>
                    column long long column very long fill fill fill long text text column text silly very make long very fill silly make make long make text fill very long text column silly silly very column long very column filler fill long make filler long silly very long silly silly silly long filler make column filler make silly long long fill very.
                </p>
            </div>
        </div>
        <div class="navigation">
            <p>
                <strong>navigation here.</strong>
                long long fill filler very fill column column silly filler very filler fill fill filler text fill very silly fill text filler silly silly filler fill very make fill column text column very very column fill fill very silly column silly silly fill fill long filler
            </p>
        </div>
        <div class="extra">Extra stuff</div>
        <div class="footer">Footer</div>
    </div>
</body>
</html>